NickS Posted December 9, 2002 Share Posted December 9, 2002 http://para.noid.org/94z/?mode=view&album=Dyno&pic=94Z-dyno.jpg&dispsize=800&start=0 Just kidding!! Its off my street car , but man am I happy with the way it turned out! - Nick #45 Camaro[/img] Quote Link to comment Share on other sites More sharing options...
Tony G Posted December 9, 2002 Share Posted December 9, 2002 Nick Are you mistaken, As I'm sure that is your CMC car isn't it??? Tony Quote Link to comment Share on other sites More sharing options...
Neil B. Posted December 11, 2002 Share Posted December 11, 2002 Nick, those are nice power/torque curves. Can you give some specs on the combo? I wouldn't mind something like that for the street too. Quote Link to comment Share on other sites More sharing options...
kincy Posted December 11, 2002 Share Posted December 11, 2002 Nick, Looks like you should richen it up a bit; particularly over 4500 rpm. Perry Quote Link to comment Share on other sites More sharing options...
NickS Posted December 11, 2002 Author Share Posted December 11, 2002 Thanks Neil! The setup is basically: 94Z28 - stock bottom end with 98K mi on it The heads are the stock castings that have been ported, the flow #'s are at the bottom. They have 2.00 / 1.56 valves, double springs and all the usual titanium hardware. The compression ratio is roughly 11.2 or so (maybe a tad higher) 1.6 roller rockers. Cam is a 230/236 .565/.565 112LSA Mac shorty headers into a y-pipe into a 3" catback into a fullsize muffler. The fuel system uses the stock lines with a Walbro intank pump and Bosch 30# injectors. I'm using the stock PCM but tuning was done using LT1Edit by Jason Swindle and me (More Jason than me at this point). It runs on 91 octane pump gas with no detonation problems at all. A couple of degrees of timing were pulled out accross the board to compensante for the higher compression ratio but after looking at the complete lack fo knock retard we saw on the dyno I think we'll try adding a bit more back in next time around and see if we can squeeze a bit more out. It got a bit lean at the top end, I've since switched to another program that's added a bit of fuel up high but we didn't run that one on the dyno (we ran out of time). Its a very docile car to drive on the street. Right now this car is my daily driver / grocery getter and it does great in every day stop and go driving. Its an absolute blast to drive on the street, my major complaint with it is that traction is non existant in 1st and 2nd gear if you really get on it. - Nick Quote Link to comment Share on other sites More sharing options...
Neil B. Posted December 12, 2002 Share Posted December 12, 2002 Wow. 411 RWHP out of a streetable normally aspirated 350 is darn impressive. Quote Link to comment Share on other sites More sharing options...
kincy Posted December 13, 2002 Share Posted December 13, 2002 Very, very impressive; in fact unprecedented! Kudos to Nick. The LS1 is able to do it pretty readily but I this is the first LT1 I have seen in that range with a smoggable cam and good street manners. Have you put it on a wideband at idle or on a smog machine at idle, Nick? Perry Quote Link to comment Share on other sites More sharing options...
Neil B. Posted December 13, 2002 Share Posted December 13, 2002 It sounds like you're using the stock LT1 heads. Who ported the heads? What kind of airflow numbers? Thanks. Quote Link to comment Share on other sites More sharing options...
NickS Posted December 19, 2002 Author Share Posted December 19, 2002 Perry - I havne't put it on a wideband at idle yet. I'll letcha know how it smogs in October. It should pass tho. Neil - The heads were done by a shop in South Carolina that builds Trans Am motors, I have the guy's email around here. 53cc chambers - 4.030 bore, 28" Intake Exh 0.100 73.8 60.9 0.150 109.5 95.1 0.200 145.3 129.2 0.250 180.0 152.0 0.300 201.6 164.3 0.350 219.4 176.2 0.400 238.9 185.2 0.450 253.3 191.3 0.500 264.1 196.2 0.550 273.7 199.2 0.600 279.9 203.9 0.650 279.8 204.8 - Nick Quote Link to comment Share on other sites More sharing options...
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